Odinstaluj Java 8 Update 71.Otwórz notatnik systemowy i wklej:

Task: {06B0083A-499F-40C5-B12F-5A54B75712ED} - System32\Tasks\FacebookUpdateTaskUserS-1-5-21-3413964584-1768734902-2983301047-1000UA => C:\Users\BEATA\AppData\Local\Facebook\Update\FacebookUpdate.exe [2013-09-08] (Facebook Inc.)
Task: {38263C15-4F82-4115-A29C-593AE5C456CF} - System32\Tasks\{54037720-77E4-4802-8A56-50B498625333} => E:\LibreOfficePortable\LibreOfficeCalcPortable.exe
Task: {716913A6-2D44-41BB-86F3-D57AA19AB24E} - \FacebookUpdateTaskUserS-1-5-21-3413964584-1768734902-2983301047-1000Core -> Brak pliku <==== UWAGA
Task: {A969CEE0-83C5-44D9-9FEC-94D4655608D6} - System32\Tasks\{896E1397-AB89-46BF-B9CA-AD01004A0102} => E:\LibreOfficePortable\LibreOfficeCalcPortable.exe
Task: {F00471B0-11CC-4559-B3AD-D0C36AF7A465} - System32\Tasks\AVAST Software\Avast settings backup => C:\Program Files\Common Files\AV\avast! Antivirus\backup.exe [2017-01-28] (AVAST Software)
Task: {F8BBDEF7-37B3-407C-917E-52BBCF1A022C} - System32\Tasks\{A28DF5C4-2D39-4F8D-B23A-1285619D203E} => E:\LibreOfficePortable\LibreOfficeCalcPortable.exe 
ShellIconOverlayIdentifiers: [00avast] -> {472083B0-C522-11CF-8763-00608CC02F24} =>  -> Brak pliku
BHO: Skype Click to Call for Internet Explorer -> {AE805869-2E5C-4ED4-8F7B-F1F7851A4497} -> C:\Program Files (x86)\Skype\Toolbars\Internet Explorer x64\skypeieplugin.dll => Brak pliku
BHO-x32: Java(tm) Plug-In SSV Helper -> {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} -> C:\Program Files (x86)\Java\jre1.8.0_71\bin\ssv.dll => Brak pliku
S3 BBSvc; "C:\Program Files (x86)\Microsoft\BingBar\BBSvc.EXE" [X]
S2 c2cautoupdatesvc; "C:\Program Files (x86)\Skype\Toolbars\AutoUpdate\SkypeC2CAutoUpdateSvc.exe" /service [X]
S2 c2cpnrsvc; "C:\Program Files (x86)\Skype\Toolbars\PNRSvc\SkypeC2CPNRSvc.exe" /service [X]
S2 SeaPort; "C:\Program Files (x86)\Microsoft\BingBar\SeaPort.EXE" [X]
EmptyTemp:

Plik zapisz pod nazwą fixlist.txt i umieść obok FRST w tym samym folderze. 
Uruchom jako administrator FRST i kliknij w Fix/Napraw.
Przeskanuj progr. Malwarebytes Anti-Malware http://www.bleepingcomputer.com/download/malwarebytes-anti-malware/